diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/pc.c | 8 | ||||
| -rw-r--r-- | hw/xen.h | 1 | ||||
| -rw-r--r-- | hw/xen_apic.c | 90 | ||||
| -rw-r--r-- | hw/xen_backend.c | 17 | ||||
| -rw-r--r-- | hw/xen_disk.c | 4 |
5 files changed, 112 insertions, 8 deletions
@@ -42,6 +42,7 @@ #include "sysbus.h" #include "sysemu.h" #include "kvm.h" +#include "xen.h" #include "blockdev.h" #include "ui/qemu-spice.h" #include "memory.h" @@ -891,9 +892,12 @@ static DeviceState *apic_init(void *env, uint8_t apic_id) if (kvm_irqchip_in_kernel()) { dev = qdev_create(NULL, "kvm-apic"); + } else if (xen_enabled()) { + dev = qdev_create(NULL, "xen-apic"); } else { dev = qdev_create(NULL, "apic"); } + qdev_prop_set_uint8(dev, "id", apic_id); qdev_prop_set_ptr(dev, "cpu_env", env); qdev_init_nofail(dev); @@ -912,6 +916,10 @@ static DeviceState *apic_init(void *env, uint8_t apic_id) msi_supported = true; } + if (xen_enabled()) { + msi_supported = true; + } + return dev; } @@ -34,6 +34,7 @@ static inline int xen_enabled(void) int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num); void xen_piix3_set_irq(void *opaque, int irq_num, int level); void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len); +void xen_hvm_inject_msi(uint64_t addr, uint32_t data); void xen_cmos_set_s3_resume(void *opaque, int irq, int level); qemu_irq *xen_interrupt_controller_init(void); diff --git a/hw/xen_apic.c b/hw/xen_apic.c new file mode 100644 index 0000000000..1725ff67dd --- /dev/null +++ b/hw/xen_apic.c @@ -0,0 +1,90 @@ +/* + * Xen basic APIC support + * + * Copyright (c) 2012 Citrix + * + * Authors: + * Wei Liu <wei.liu2@citrix.com> + * + * This work is licensed under the terms of the GNU GPL version 2 or + * later. See the COPYING file in the top-level directory. + */ +#include "hw/apic_internal.h" +#include "hw/msi.h" +#include "xen.h" + +static uint64_t xen_apic_mem_read(void *opaque, target_phys_addr_t addr, + unsigned size) +{ + return ~(uint64_t)0; +} + +static void xen_apic_mem_write(void *opaque, target_phys_addr_t addr, + uint64_t data, unsigned size) +{ + if (size != sizeof(uint32_t)) { + fprintf(stderr, "Xen: APIC write data size = %d, invalid\n", size); + return; + } + + xen_hvm_inject_msi(addr, data); +} + +static const MemoryRegionOps xen_apic_io_ops = { + .read = xen_apic_mem_read, + .write = xen_apic_mem_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void xen_apic_init(APICCommonState *s) +{ + memory_region_init_io(&s->io_memory, &xen_apic_io_ops, s, "xen-apic-msi", + MSI_SPACE_SIZE); +} + +static void xen_apic_set_base(APICCommonState *s, uint64_t val) +{ +} + +static void xen_apic_set_tpr(APICCommonState *s, uint8_t val) +{ +} + +static uint8_t xen_apic_get_tpr(APICCommonState *s) +{ + return 0; +} + +static void xen_apic_vapic_base_update(APICCommonState *s) +{ +} + +static void xen_apic_external_nmi(APICCommonState *s) +{ +} + +static void xen_apic_class_init(ObjectClass *klass, void *data) +{ + APICCommonClass *k = APIC_COMMON_CLASS(klass); + + k->init = xen_apic_init; + k->set_base = xen_apic_set_base; + k->set_tpr = xen_apic_set_tpr; + k->get_tpr = xen_apic_get_tpr; + k->vapic_base_update = xen_apic_vapic_base_update; + k->external_nmi = xen_apic_external_nmi; +} + +static TypeInfo xen_apic_info = { + .name = "xen-apic", + .parent = TYPE_APIC_COMMON, + .instance_size = sizeof(APICCommonState), + .class_init = xen_apic_class_init, +}; + +static void xen_apic_register_types(void) +{ + type_register_static(&xen_apic_info); +} + +type_init(xen_apic_register_types) diff --git a/hw/xen_backend.c b/hw/xen_backend.c index 2673ace185..66cb144397 100644 --- a/hw/xen_backend.c +++ b/hw/xen_backend.c @@ -592,7 +592,7 @@ static void xenstore_update_be(char *watch, char *type, int dom, struct XenDevOps *ops) { struct XenDevice *xendev; - char path[XEN_BUFSIZE], *dom0; + char path[XEN_BUFSIZE], *dom0, *bepath; unsigned int len, dev; dom0 = xs_get_domain_path(xenstore, 0); @@ -611,15 +611,16 @@ static void xenstore_update_be(char *watch, char *type, int dom, return; } - if (0) { - /* FIXME: detect devices being deleted from xenstore ... */ - xen_be_del_xendev(dom, dev); - } - xendev = xen_be_get_xendev(type, dom, dev, ops); if (xendev != NULL) { - xen_be_backend_changed(xendev, path); - xen_be_check_state(xendev); + bepath = xs_read(xenstore, 0, xendev->be, &len); + if (bepath == NULL) { + xen_be_del_xendev(dom, dev); + } else { + free(bepath); + xen_be_backend_changed(xendev, path); + xen_be_check_state(xendev); + } } } diff --git a/hw/xen_disk.c b/hw/xen_disk.c index 9719395b09..22dbd10303 100644 --- a/hw/xen_disk.c +++ b/hw/xen_disk.c @@ -745,6 +745,10 @@ static int blk_free(struct XenDevice *xendev) struct XenBlkDev *blkdev = container_of(xendev, struct XenBlkDev, xendev); struct ioreq *ioreq; + if (blkdev->bs || blkdev->sring) { + blk_disconnect(xendev); + } + while (!QLIST_EMPTY(&blkdev->freelist)) { ioreq = QLIST_FIRST(&blkdev->freelist); QLIST_REMOVE(ioreq, list); |